F-18 FDG Uptake in Osteonecrosis Mimicking Bone Metastasis on PET/CT Images

A 55-year-old man underwent F-18 FDG PET/CT for the evaluation of recurrent lung cancer. PET/CT showed a hypermetabolic lung mass, and a focal area of increased F-18 FDG uptake in the right proximal femur, which corresponded to increased attenuation on CT, and was consistent with a bone marrow metas...

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Veröffentlicht in:	Clinical nuclear medicine 2007-06, Vol.32 (6), p.496-497
Hauptverfasser:	Sohn, Myung-Hee, Jeong, Hwan-Jeong, Lim, Seok Tae, Song, Sang-Heon, Yim, Chang-Yeol
Format:	Artikel
Sprache:	eng
Schlagworte:	Adult Bone Neoplasms - diagnostic imaging Diagnosis, Differential Femur Fluorodeoxyglucose F18 - pharmacokinetics Humans Male Osteonecrosis - diagnostic imaging Positron-Emission Tomography Radiopharmaceuticals - pharmacokinetics Tomography, Emission-Computed Tomography, X-Ray Computed
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Zusammenfassung:	A 55-year-old man underwent F-18 FDG PET/CT for the evaluation of recurrent lung cancer. PET/CT showed a hypermetabolic lung mass, and a focal area of increased F-18 FDG uptake in the right proximal femur, which corresponded to increased attenuation on CT, and was consistent with a bone marrow metastasis. The patient underwent a CT-guided biopsy and the pathologic findings were compatible with osteonecrosis, without evidence of malignancy. This case demonstrates that F-18 FDG uptake by osteonecrosis can mimic bone metastasis in a patient with malignancy.
ISSN:	0363-9762 1536-0229
DOI:	10.1097/RLU.0b013e318053ed7b